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Crystal Structure of the Apo Form of Vibrio Harveyi LUXP Complexed with the Periplasmic Domain of LUXQ

X-ray diffraction
1.94Å resolution
PDB entry 1zhh coloured by chain, front view.
PDB entry 1zhh coloured by chain, side view.
PDB entry 1zhh coloured by chain, top view.
Source organism: Vibrio harveyi
Assembly composition:
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Autoinducer 2 sensor kinase/phosphatase LuxQ and Autoinducer 2-binding periplasmic protein LuxP
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Multimeric state: hetero dimer
Accessible surface area: 25421.14 Å2
Buried surface area: 2782.48 Å2
Dissociation area: 1,291.92 Å2
Dissociation energy (ΔGdiss): -2.45 kcal/mol
Dissociation entropy (TΔSdiss): 12.99 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-156992

Macromolecules

Autoinducer 2-binding periplasmic protein LuxP
Chain: A
Length: 344 amino acids
Theoretical weight: 39.29 KDa
Source organism: Vibrio harveyi
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P54300 (Residues: 22-365; Coverage: 100%)
Gene name: luxP
Pfam: Periplasmic binding protein domain
InterPro:
CATH: Rossmann fold
SCOP: L-arabinose binding protein-like
Autoinducer 2-binding periplasmic protein LuxP in PDB entry 1zhh, assembly 1, front view.
Autoinducer 2-binding periplasmic protein LuxP in PDB entry 1zhh, assembly 1, side view.
Autoinducer 2-binding periplasmic protein LuxP in PDB entry 1zhh, assembly 1, top view.
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Autoinducer 2 sensor kinase/phosphatase LuxQ
Chain: B
Length: 242 amino acids
Theoretical weight: 27.41 KDa
Source organism: Vibrio harveyi
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P54302 (Residues: 39-278; Coverage: 28%)
Gene name: luxQ
Pfam: LuxQ, periplasmic
InterPro:
CATH:
SCOP: LuxQ-periplasmic domain-like
Autoinducer 2 sensor kinase/phosphatase LuxQ in PDB entry 1zhh, assembly 1, front view.
Autoinducer 2 sensor kinase/phosphatase LuxQ in PDB entry 1zhh, assembly 1, side view.
Autoinducer 2 sensor kinase/phosphatase LuxQ in PDB entry 1zhh, assembly 1, top view.
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